Cultivator.



PATENTED FEB. 3, 1903.

G. K. SPITZENBERG.

GULTIVATOR. APPLICATION FILED SEPT. 27, 19Q1.

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UNITED STATES PATENT OEEICE.

GEORG KARL SPITZENBERG, OF FORSTHAUS LINZMHLE, NEAR PFAFFEN- DORF, GERMANY.

CU LTIVATOR.

SPECIFIGATIGN forming part of Letters Patent No. 719,898, `dated February 3, 1 903. Application led September 27, 1901. Serial No. 76,819. (No model.)

To @ZZ whom t may concern:

Be it known that I, GEORG KARL SPITZEN- BERG, a subject of the Emperor of Germany, and a resident of Forsthaus Linzmiihle, near 5 Pfaffendorf, in the Province of Brandenburg,

Germany, have invented certain new and useful Improvements in Oultivators, of which the following is a full, clear, and exact description.

1o The present invention relates to implements for cultivating land which apply primarily to forestry, but also to agriculture and horticulture.

In using the implements constructed ac- I 5 cording to the present invention the soil to be treated is loosened and mixed to the required depth by means of rotarily-moving knives or 'blades without reversing the layers of soil in such a manner that (in forest soil) the humus zo or vegetable soil will naturally be most plentiful on top and no sharply-defined line Will exist between loosened and unloosened soil, suitable pressure being thereafter brought to bear on the loosened soil and the latter being finally covered with a ne loose granulated layer.

In the annexed drawings the implements referred to are represented in several forms of construction. I

3o Figures 1 to 3 represent a hand implement for loosening the soil, Fig. 1 being a front view, and Fig. 2 an end View, of the implement, and Fig. 3 showing detail views of the exchangeable bearing-plates of the implement.

Figs. 4 and 5 represent a combined vehicular apparatus serving both for loosening the soil and placing the'seed, Fig. 4 being a side view, and Fig. 5 a plan view, of this apparatus. Figs. 6 to 9 represent forms of the ap- 40 paratus shown in Figs. 4 and 5 intended more particularly for field culture, Figs. 6 and 8 being side views, Figs. 7 and 9 being plan views, of this vehicular apparatus.

In the following description the cultivating apparatus, which are applicable to forestry, agriculture, and horticulture, will be more particularly treated as applied to forest cultivation. Since in forest cultivation the soil is generally only loosened in parts, any exist- 5o ing crustation is first removed from such parts by means of the apparatus for that purpose by hoeing or plowing to the smallest possible depth.

Figs. l and 2 represent a hand implement for use in cultivation from seeds, called a trellis-rake, which serves to prepare the soil, place the seed, and press down the seedbed. The drum 126, formed by series of bent knives or blades 2, and the trellis-drum 127, formed by longitudinal bars, are ar- 6o ranged, twin-like, one above the other. Both rollers 126 and 127 are provided with exchangeable bearing-plates 128 in order that the bearings may easily be replaced when worn out. By means of the roller 126 the 65 soil is loosened and prepared and in some cases also pressed down-for instance, when a thick covering is desired. By means of the roller 127 only shallow placing is effected and the seed is com mingled with the soil, the lat- 7o ter being also pressed down and a granular surface layer produced. Fig. 3 represents two different methods of fastening the trellisbars and the arrangement of the bearingplates 128.

A modication of the trellis-rake is constructed as a vehicular apparatus principally for use in field cultivation, as shown in Figs. 4 and 5. lIn this vehicular apparatus the knife-drum 129, provided with the transverse 8o knives 3, has the form of a so-called revolving harrow. The axle 130 of this drum 129,

ywhich is also provided with exchangeable bearing-plates, has bearings in the frame 131, which is connected to the frame 136 of the 85 trellis-roller by means of links 137. To the rear of the frame 136 a drag 132 may be attached. The latter consists of a suspended slide with movable members 133 and serves to raze elevations of the soil which have been 9o produced and to produce a loose layer of granular earth. Above the shaft on both sides weights 134 and 138 may be attached to the frames 131 and 136, respectively. These weights may be of any suitable size and suit- 95 able number of them maybe provided. After loosening the links 137 the knife-drum or revolving harrow 129 and the trellis-roller 135 may be used separately for cultivating purposes, as illustrated by Figs. 6 to 9.

What I claim, and desire to secure by Letters Fatent, is-

means, and a drag arranged at the rear of the 15 frames.

5. In a cuitivator, the combination of a frame, a roller provided with knives, journaled in said frame, a trellis-roller, a drag at the rear of the frame, said drag being formed zo of a series of movable members, and weights for said frame.

Dated this 14th day of September, 1901.

GEORG KARL SPITZENBERG.

Witnesses HENRY HAsPER, WOLDEMAR HAUPT. 

